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All Journal Sains Natural: Journal of Biology and Chemistry Jurnal Pengelolaan Laboratorium Pendidikan Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Journal of Sylva Indonesiana International Journal of Recent Technology and Applied Science (IJORTAS) Indonesian Journal of Laboratory Jurnal Sylva Lestari Jurnal Ilmu Kehutanan Jurna Beta Kimia
Prihatini, Esti
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Energy Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics

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The Effect of Synthetic and Commercial Nano-Magnetite on the Electromagnetic Absorbance Behavior of Magnetic Wood Rahayu, Istie Sekartining; Sabarna, Aqila Alya Nabila; Wahyuningtyas, Irma; Ismail, Rohmat; Prihatini, Esti; Darmawan, Wayan; Laksono, Gilang Dwi; Alipraja, Irsan
Jurnal Sylva Lestari Vol. 12 No. 2 (2024): May
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v12i2.889

Abstract

Magnetic wood with good electromagnetic wave absorption properties was prepared by comparing synthetic and commercial nano-magnetite (Fe3O4-NP) as sengon (Falcataria moluccana) wood impregnation solution. The co-precipitation method produced a synthetic nano-magnetite with NH4OH as a weak base precursor. Meanwhile, the commercial one was purchased from a supplier. Three levels of nano-magnetite concentration (1%, 2.5%, and 5%) were dispersed in deionized water. The impregnation process was done by applying a vacuum of 0.5 bar for 120 minutes, followed by a pressure of 1 bar for 120 minutes. The results showed that the commercial nano-magnetite caused more improvements in weight percent gain, density, and hardness than the synthetic nano-magnetic, although they were insignificantly different. There was also a reduction in brightness with the overall color change being categorized into other colors because the color became darker with increasing nano-magnetite concentration in both woods. The absorbance capacity of the synthetic nano-magnetite-treated wood was larger than the commercial nano-magnetite-treated wood. This synthetic nano-magnetite-treated wood had been optimally treated at a 5% concentration, making it suitable for use as electromagnetic wave shielding material because it can absorb almost 100% electromagnetic waves. Keywords: Fe3O4, impregnation, nano-magnetite, sengon wood, shielding materials
Co-Authors Dwi Laksono, Gilang Erlangga, Manasye I Wayan Darmawan Irsan ALIPRAJA Ismail, Rohmat Istie Rahayu Khairunissa, Dhiya Khoerudin, Riki Laksono, Gilang Dwi Riadhi, Mohamad Rizki Sabarna, Aqila Alya Nabila Saputri, Egy Dia Saputri, Egydia Trisna PRIADI Wahyuningtyas, Irma